diskio.h

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/*-----------------------------------------------------------------------
/  Low level disk interface modlue include file   (C)ChaN, 2009
/-----------------------------------------------------------------------*/

#ifndef _DISKIO
#define _DISKIO

#include "integer.h"


/* Status of Disk Functions */
typedef unsigned char DSTATUS;

/* Results of Disk Functions */
typedef enum {
        RES_OK = 0,             /* 0: Successful */
        RES_ERROR,              /* 1: R/W Error */
        RES_WRPRT,              /* 2: Write Protected */
        RES_NOTRDY,             /* 3: Not Ready */
        RES_PARERR              /* 4: Invalid Parameter */
} DRESULT;


/*---------------------------------------*/
/* Prototypes for disk control functions */

int assign_drives (int, int);
DSTATUS disk_initialize (unsigned char);
DSTATUS disk_status (unsigned char);
DRESULT disk_read (unsigned char, unsigned char*, DWORD, unsigned char);
DRESULT disk_write (unsigned char, const unsigned char*, DWORD, unsigned char);
DRESULT disk_ioctl (unsigned char, unsigned char, void*);



/* Disk Status Bits (DSTATUS) */

#define STA_NOINIT              0x01    /* Drive not initialized */
#define STA_NODISK              0x02    /* No medium in the drive */
#define STA_PROTECT             0x04    /* Write protected */


/* Command code for disk_ioctrl fucntion */

/* Generic command (mandatory for FatFs) */
#define CTRL_SYNC                       0       /* Flush disk cache (for write functions) */
#define GET_SECTOR_COUNT        1       /* Get media size (for only f_mkfs()) */
#define GET_SECTOR_SIZE         2       /* Get sector size (for multiple sector size (_MAX_SS >= 1024)) */
#define GET_BLOCK_SIZE          3       /* Get erase block size (for only f_mkfs()) */

#endif